feat(VCalendar): add day click events

[muzychenka]

Description

it would be nice to be able to track clicking on a day in the calendar (to add a new event i.e.)
I added events monthDayClick for VCalendarMonthDay, dayClick for VCalendarDay and several events for VCalendar itself to handle all these clicks: click:monthDay, click:weekDay, click:day

Markup:

<template>
  <v-app>
    <v-container>
      <v-calendar
        view-mode="month"
        @click:day="click('Day', $event)"
        @click:month-day="click('Month', $event)"
        @click:week-day="click('Weekday', $event)"
      />
    </v-container>
  </v-app>
</template>

<script setup lang="ts">
function click (type: string, date: Date) {
  alert(`${type}: ${date}`)
}
</script>

[userquin]

I guess these events should use any since we're using Date adapter and not all adapters using Date (onXXXClick functions should be also changed: check VDatePicker.tsx)

In fact, onClickToday is wrong:

    function onClickToday () {
      model.value = [new Date()]
    }

should be:

    function onClickToday () {
      model.value = [adapter.date()]
    }

I need to check if this is working:

[KaelWD]

Duplicate of #19568

[JulienAramino]

Hello, could we have also click:time?